<template>
  <div>
    <h3>{{ aaa }}</h3>
    <button @click="aaa++">修改aaa</button>
    <h3>{{ bbb }}</h3>
    <button @click="bbb++">修改bbb</button>
  </div>
</template>
<script>
export default {
  data() {
    return {
      aaa: 1,
      bbb: 999
    }
  }
}
</script>
<style></style>
